Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2008 by Universidad Católica de Valparaíso -- Chile
Vol. 11 No. 1, Issue of January 15, 2008
 


Table 7. Essential soil characteristics for Option 6: Phytoremediation. (Results represent mean ± standard deviation of three replicates).


WAR
Cell

0

2

6

0

2

6

0

2

6

0

2

6

0

2

6

% Moisture by mass

Total hydrocarbon content (mg/kg)

% Organic Carbon

% Total Nitrogen

THB count (x 105 cfu/ml)

A

12 ± 1

16 ± 1

17 ± 1

20 150.0 ± 180

7661.7 ± 60

5239.2 ± 48

0.46 ± 0.03

0.33 ± 0.03

0.19 ± 0.05

0.19 ± 0.01

0.12 ± 0.006

0.06 ± 0.003

16.4 ± 0.01

28.8 ± 0.25

38.6 ± 0.16

B

14 ± 1

15 ± 2

16 ± 1

20 470.1 ± 140

4730.5 ± 180

6363.4 ± 220

0.50 ± 0.04

0.44 ± 0.02

0.24 ± 0.02

0.31 ± 0.01

0.19 ± 0.007

0.08 ± 0.004

8.6 ± 0.06

22.8 ± 0.08

28.6 ± 0.15

C

16 ± 2

15 ± 1

19 ± 2

24 683.0 ± 240

5547.9 ± 200

8502.1 ± 200

0.48 ± 0.01

0.38 ± 0.02

0.26 ± 0.03

0.22 ± 0.02

0.14 ± 0.01

0.06 ± 0.003

8.8 ± 0.15

17.6 ± 0.18

26.4 ± 0.05

D

18 ± 1

16 ± 2

16 ± 1

24 917.3 ± 100

5004.8 ± 250

11 223.6 ± 80

0.50 ± 0.04

0.34 ± 0.02

0.28 ± 0.01

0.21 ± 0.02

0.126 ± 0.007

0.06 ± 0.004

18.0 ± 0.20

24.2 ± 0.16

31.6 ± 0.06

E

16 ± 1

22 ± 1

17 ± 2

22 086.2 ± 250

2985.0 ± 210

9936.1 ± 360

0.50 ± 0.04

0.40 ± 0.01

0.30 ± 0.01

0.33 ± 0.01

0.20 ± 0.005

0.08 ± 0.005

17.5 ± 0.08

25.4 ± 0.21

36.4 ± 0.35

Cell: (A) combination of corn and elephant grass; (B) Corn treated cells (3 stands per cell); (C) Corn treated cells (5 stands per cell); (D) Elephant grass treated cells (3 stands per cell); (E) Elephant grass treated cells (5 stands per cell).
WAR: Week(s) after remediation.
THB: Total heterotrophic bacteria.
cfu/ml: Colony forming unit per millilitre.


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